Features METAL MATERIAL: Bottle capping machine bit uses premium metal materials, which are sturdy, durable, wear resistant, and resistant to falling. 70 TO 80MM: Electric capping machine bit has a diameter 70 to 80mm, suitable for various sizes of bottle hats. USAGE SUGGESTION: Capping machine bit must be used together with an automatic bottle capping machine (not included). WITH FASTENING RUBBER PAD: Capping machine bit has a special waterproof and leakage proof rubber pad, and the interface is tightened. EASY TO INSTALL: Fine workmanship and standard size make the capping machine bit easy to install for convenient use. Specification: Item Type: Electric Capping Machine Bit Material: Metal, Rubber Hat Diameter: Approx. 70 to 80mm / 2.76 to 3.15in Bottle Height: Unrestricted Outer Diameter of Rubber Pad: Approx. 90mm / 3.54in Rubber Pad Height: Approx. 17mm / 0.67in Overall Height: Approx. 75mm / 2.95in Package List:1 x Electric Capping Machine Bit Package List 1 x Electric Capping Machine Bit